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The area of the entire surface of a triangular prism with the base side a = 5 and height h = 15 equal to 246.65

Select the type of prism:
Side a: Height h:

Triangular prism

A regular triangular prism is a geometric figure whose base is an equilateral triangle.
Triangular prism surface area formula Triangular prism surface area formula where a is the side of the base, h is the height of the prism

Solution:
S =
6·a·h+a2·√3
2
=
6·5·15+52·√3
2
=
450+25·1.732
2
=
450+43.3
2
=
493.3
2
=
246.65

a: The area of the entire surface of a triangular prism with the base side a = 5 and height h = 15 equal to 246.65